|The 12” profile Sonata has Visco Elastic Memory Foam that offers superior pressure relief that can dramatically diminish tossing and turning for a more restful sleep pattern. Covered with a beautifully detailed quilted circle knit cover for breathability, this memory foam mattress will keep you warmer in the winter and cooler in the summer. High performance support base offers extraordinary comfort and unparalleled orthopedic support. This base is a higher grade (anti-microbial) version of polyurethane foam. Also, the extra strong support base will ensure that the bed never sags or flattens out. Handcrafted by the Pennsylvania Amish, our foundations offer better support than a traditional box spring.